linux-kernel - [PATCH v3 5/5] elevator: remove redundant code in elv_unregister

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Message-ID: <20220922113558.1085314-6-yukuai3@huawei.com>
Date:   Thu, 22 Sep 2022 19:35:58 +0800
From:   Yu Kuai <yukuai3@...wei.com>
To:     <jack@...e.cz>, <paolo.valente@...aro.org>, <axboe@...nel.dk>
CC:     <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <yukuai3@...wei.com>, <yukuai1@...weicloud.com>,
        <yi.zhang@...wei.com>
Subject: [PATCH v3 5/5] elevator: remove redundant code in elv_unregister_queue()

"elevator_queue *e" is already declared and initialized in the beginning
of elv_unregister_queue().

Signed-off-by: Yu Kuai <yukuai3@...wei.com>
---
 block/elevator.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/block/elevator.c b/block/elevator.c
index 7cb61820cfa0..0a72d6fbbdcc 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -524,8 +524,6 @@ void elv_unregister_queue(struct request_queue *q)
 	lockdep_assert_held(&q->sysfs_lock);
 
 	if (e && test_and_clear_bit(ELEVATOR_FLAG_REGISTERED, &e->flags)) {
-		struct elevator_queue *e = q->elevator;
-
 		kobject_uevent(&e->kobj, KOBJ_REMOVE);
 		kobject_del(&e->kobj);
 	}
-- 
2.31.1